Black and White Photoshop Experiments

 I feel that this black and white technique on photoshop is very useful and interesting, it allows me to stand things out and brighten certain things. I done this 2 different ways, the first way with the chains i used a layer mask over the black and white adjustment. On the second image i created a selection around the area that i wanted in colour with the pen tool. I then copied and pasted it onto a new layer where i could then edit it with adjustments.